IRT1 — Brassica napus

Summary

BnIRT1 (DARMORV10_C01P13790.1) on chromosome C01 of oilseed rape encodes a ZIP family metal transporter with iron channel activity and transmembrane transporter activities for copper, manganese, zinc, and cadmium ions. The gene is associated with metal homeostasis, iron deficiency response and tolerance, and accumulation of iron, cadmium, and zinc. It has been linked to photosynthetic rate, chlorophyll and carotenoid content, leaf chlorosis, stomatal resistance, germination rate, and plant growth and development traits. Associations also include pollen germination, cellular response to hypoxia, response to bacteria, signal transduction, and downregulation of abscisic acid mediated signaling. The protein localizes to the plasmalemma, endosome, late endosome membrane, TGN, and nucleus. Related genes in other species link the family to iron uptake, transport, and translocation, as well as nickel accumulation and cadmium sensitivity.